Shifting mechanism



G. GRAN.

SHIFTING MECHANISM. APPLICATION FILED nec. 1s. Ils.

1,367,694, Patented Febi s, 1921.

ZfSHEETS-SHEET l.

G. GRAN.'-

SHIFVTING MECHANISM. APfLlcATloN HLED nic. 16, 1919.

1,362694. Patented Feb. 8,1921.

2 SHEETS-SHEET 2.y

5@ f Xff/al UNITED STATES PATENT OFFICE.

SHIFTING MECHANISM.

. Specification of Letters Patent.

Patented Feb. 8, 1921.

Application filed December 16, 1919. Serial No. 345,320.

To all whom t may concern:

Be it known that I, GEORG GRAN, a subject of the King of Norway, residing at Revetal, near Tnsberg, Norway, have invented certain new and useful Improvements in Shifting Mechanism; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention has reference to combined drill and sowing machines and has for its object to provide improved means for moving the sowing apparatus from one side to the other, the adjustment and guiding of the sowing apparatus being effected with greater certainty than in arrangements for this purpose hitherto used.

The invention consists in the novel construction, arrangement and combinations of parts as hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

T he accompanying drawings show a combined drill and sowing machine embodying the invention.

Figure l shows the machine partly in side elevation and partly in section.

Fig. 2 is a front elevation of the throwing over mechanism and,

Fig. 3 is a side view of the same.

In machines of this kind the sowing apparatus, which works laterally in relation to the drill plow, must at each turn at the commencement of a new furrow be moved over from left t0 right or vice versa.

In the improved machine the sowing apparatus which consists, as heretofore usual, of the seed receptacle 1 with guide wheels 2 and 3, is carried by an arm 4 which is rigidly connected to a yoke 5. By means of rollers 6 the yoke 5 is mounted to slide in the transverse direction of the vehicle along a rail 7 and is moved along this rail by means of a handle 8. At the front and rear the yoke 5 is guided between other yokes 9 and 10. Rigid with the handle 8 is an arm 11 the lower end of which is mounted to turn about a pivot 12 fastened to the frame; consequently the handle 8 also turns about the said pivots. One end of the handle is provided with a roller 13 which works 1n a longitudinal groove or a track 14: in an arm 15. The arm 15 is pivoted at 16 to the yoke 5 or to a cross bar 17 connected to such yoke. At its upper end the arm 15 is guided by projecting upwardly through a hole in a vertical flat-ironshaped yoke 18.

It will be seen that when the handle 8 is moved to one side or the other of the po sition shown in full lines in Fig. 2, the yoke 5, and consequently the sowing apparatus, is caused to move in a horizontal direction along the rail 7, the roller 13 sliding in the groove or track 14 and carrying the arm 15 along with it. The arm 11 of the handle 8 is guided in its swinging movements by a yoke 19, which latter also serves to limit the said swinging movements when said arm strikes against the ends of said yoke.

In order that the sowing apparatus may better follow the inequalities of the ground, the arm 4 is preferably made in two parts connected by a pivot 2O which renders it possible for the wheel 2 to follow freely inequalities along the ground.

TWhat I claim is 1. In a machine of the character described, the combination with a wheeled frame, of a transverse rail carried by said frame, a sowing apparatus, a yoke supporting the latter and adapted to be moved along said rail, an operating handle having a pivotal connection with the frame and adapted to be moved transversely of the latter, an arm pivotally connected to the yoke, a roller carried by the handle and adapted tov travel within a longitudinal groove in the said arm in the swinging movements of the latter, and means to guide the said arm in its swinging movements.

2. In a machine of the character described, the combination with a wheeled frame, of a transverse rail carried by said frame, a sowing apparatus, a yoke supporting the latter and adapted to be moved along said rail, guides carried by the frame and be? tween which the said yoke moves, an operating handle having a pivotal connection with the frame and adapted to be moved transversely of the latter, an arm pivotally connected to the yoke, a roller carried by the handle and adapted to travel within a longitudinal groove in the said arm in the swinging movements of the latter, and means to guide the said arm in its swinging movements.

3. In a machine of the character described the combination with a Wheeled frame, of a transverse rail carried by said frame, a sovring apparatus, a yoke supporting the Vlatter' and adapted to be moved along said rail, guides carried by the frame and between Which the said yoke moves, an operating handle having a pivotal connection with the frame and adapted to be moved transversely of the latter, an arm pivotally connected to the yoke, a roller carried by the handle and adapted to travel Within a longitudinal groove in the said arm in the swinging movements of the latter, and means to guide the arm in its swinging movements 15 consisting` of a yoke carried by the frame With Which yoke the said arm loosely engages as set forth.

ln testimony that I claim the foregoing as my invention, I have signed 'my name in 20 presence of'two subscribing Witnesses.

GEORG GRAN.

Witnesses E. S. HENDRICKSEN, NATH. A. HnDENsoHoU, 

